Calling all armchair generals! Boudica's Last Stand.

[Nathan Ross]

Pliny and others, tell us that natural cerrial crops require 4 months of fallow following a harvest.

Do you think you could provide quotes or exact references when you are citing ancient authors? As I commented above, the only note I can find in Pliny is the one about leaving ground fallow before planting with beans.

The romans built London as  an import port to bring over cerials... cetrials came from the Rhine ports and emmer was the dominated cerrial crop grown there.

Hingley (Iron Age Warrior Queen, p.88) mentions that carbonised grains from the Fenchuch Street destruction layer are Einkorn, not emmer. There were also lentils probably grown in the Mediterranean.

Varro gives us the sowing, and reaping timeline.

Again, could you provide a reference? It's quite a large text!

The timeline appears to be as follows:

"In the fourth period, between the [summer] solstice and the Dog Star, most farmers harvest" (De Rustica, 1.32.1)

"In the sixth period, from the autumnal equinox, the authorities state that sowing should begin and continue up to the ninety-first day. After the winter solstice, unless necessity requires, there should be no sowing." (De Rustica, 1.34.1)

Summer solstice to the dog star gives late summer for the harvest. Autumn equinox is mid-late September, so sowing begins then and ends before the winter solstice in December. This seems to accord perfectly with the timeline I suggested above.

you have no rations and no water, and you mpd drops to next to nothing as you have consumed the logistics that give you that mpd capability.

All this logisitics stuff is very detailed, but after he left Anglesey Paulinus was operating on Roman roads, between established Roman forts, towns and depots, and could have supplied himself along the line of march. Calculations based on operations in enemy or unconquered territory without established supply points need not concern us here.

one of the longest battles of antituity,  and 70,000 casulaties, is still 10,000 an hour

As I mentioned above, I think 70 or 80,000 casualties is hugely inflated. I suggested dawn to mid morning as the span of the battle; Michael mentioned that Dio has it extending into the evening, so it could have begun later in the day. Anything more than an hour of direct combat would be highly unlikely.

August was not the sowing season,you have conflated  sowing with reaping

I don't think so...

August 25th – End of harvest.

October 1st – ...Crop planting season begins around now, interrupted due to war.

Same dates as Varro, quoted above.

tacitus records  it as a 2 season event

I do not think he does. All he tells us is that the Britons had gone away to the war during or shortly before the sowing season, and had not returned.

He also says that the revolt began while Paulinus was conducting operations on Anglesey. Since the military operations would be late summer and the sowing mid autumn, we have our single-year campaign right there.

You have not yet explained how the Britons could still have been absent for a spring sowing season if the revolt began in summer, or conversely how Paulinus could have been operating on Anglesey in midwinter if the revolt began before the spring sowing.